Speaker enclosure



FIG. 1 is a perspective view of the speaker enclosure in accordance with the present invention;

FIG. 2 is a right-side view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a top view thereof.

The broken lines shown in the Figures are for illustrative purposes as an environment and form no part of the claimed design. 

The ornamental design for a speaker enclosure, substantially as shown and described. 